108 NORTH AMERICAN FLORA [VoLUME 7 
Epilobium paniculatum Nutt., Montana. 
Epilobium sp., Alaska. 
TYPE LOCALITY: Europe, on Epilobium monianum. 
DISTRIBUTION: Delaware to Nebraska and central California, northward into Canada and 
Alaska; also in Europe. 3 
ILLUSTRATION : Zeits. Pflanzenkr. 9: 25. f. 2, 
eo es Ellis, N. Am. Fungi 1076; Ellis & Ev. Fungi Columb. 267; Griff. West Am. 
ngi 242, 
6. Pucciniastrum Pyrolae (Pers.) Dietel, in E. & P. Nat. 
Pad "2-47, 1897, 
Aecidium Pyrolae (‘‘pynolae’’) Pers.; Gmel. Syst. Nat.2: 1473. 1791. 
Uredo polymorpha Pyrolae Strauss, Ann. Wett. Ges. 2: 87. 1810. 
Uredo Pirolae H. Mart. Fl. Mosq. 229, 1812. 
Hypodermium (Uredo) Pyrolae Link, Ges. Nat. Freunde Berlin Mag. 7: 28. 1815. 
Caeoma Pyrolae Schlecht. Fl. Berol. 2: 122. 1824. 
Trichobasts Pyrolae Berk. Outl. Brit. Fungi 332. 1860. 
Physonema Pyrolae Niessl, Verh. Nat. Ver. Briinn 3: 104. 1864. 
Thecopsora Pyroiae Karst. Bidr. Finl. Nat. Folk 31: 59. 1879. 
Melampsora Pirolae Schrot. Krypt. Fl. Schles. 31; 366, 1887. 
Uredo Chimaphilae Peck, Ann. Rep. N. Y. State Mus. 46: 33. 1893. 
Ovand I. Pycnia and aecia unknown. 
Il. Uredinia hypophyllous or amphigenous, small, more or less grouped, mammiillose, 
yellowish-red, dehiscent by a central pore; peridium hemispherical, firm, cells large, 
elongated vertically, walls thin, 24, gradually thickened below toward the orifice, ostiolar 
cells larger, 35-45, greatly thickened below, coarsely echinulate above; urediniospores 
clavate-oblong or ellipsoid, 13-18 by 26-39; wall colorless, medium thick, 1.5-24, mi- 
nutely echinulate; contents orange-red when fresh. 
Ill. Telia hypophyllous adjoining uredinia, inconspicuous, flat, subepidermal, an even 
layer of laterally united cells; teliospores oblong or columnar, 10-12 by 24-28; wall 
uniformly thin, 1, colorless. 
ON PYROLACEAE : 
Chimaphila maculata (1,.) Pursh, New Jersey, New York. 
Chimaphila umbellata (U.) Nutt., Oregon, Wisconsin. 
Pyrola chlorantha Sw., Wyoming. 
Pyrola elliplica Nutt., New Hampshire, Pennsylvania, Wisconsin ; Ontario. 
Pyrola grandifiora Radius, Greenland. 
Pyrola picta Smith, California. 
Pyrola rotund:folia \,., Montana. 
Pyrola secunda \,., California, Colorado, Oregon, Washington, Wisconsin ; Ontario. 
TYPE LOCALITY: Europe, on [Pyrola sp.]. ; ; ; 
DISTRIBUTION : New Jersey to Wisconsin, northern California and northward ; also in Europe. 
ExsriccaTi: Sydow, Ured. 1791, 1795. 
7. Pucciniastrum sparsum (Wint.) Ed. Fisch. Beitr. Krypt. Schweiz 
2’: 469. 1904. 
Melampsora sparsa Wint. in Rab. Krypt. Fl. 11: 245. 1881. 
Uredo Arbuti Dietel & Holway, Bot. Gaz. 18: 256. 1893. 
Pucciniastrum Arbuti Dietel & Holway ; Dietel, E. & P. Nat. Pfl. 11**: 47, 1897. 
Uredo Copelandi Sydow, Ann. Myc. 2: 31. 1904. 
O and I. Pyenia and aecia unknown. 
II. Uredinia amphigenous or only hypophyllous, gregarious on discolored spots, or 
scattered, bullate, round or irregular, 0.3-0.5 mm. across, dehiscent by central pore, long 
covered by overarching epidermis; peridium hemispherical, firm, cells large, elongate 
vertically, walls thin, 2, gradually thickened below toward the orifice, smooth, ostiolar 
cells 35-504 high, greatly thickened below, coarsely to finely echinulate above; uredinio- 
spores clavate-oblong or ellipsoid, 12-20 by 26-45; wall colorless, thin, 1-2, finely and 
sparsely echinulate; contents orange-yellow when fresh. 
III. Telia amphigenous, diffused, inconspicuous; teliospores in the epidermal cells, 
singly or in a layer, ellipsoid, 18-35 by 24-35 p; wall cinnamon-brown, thin, 24”, much 
thicker above, 6#, with one apical pore. 
ON ERICACEAE : 
Arbuius densifiora H.B.K., Oaxaca. 
? Arbutus macrophylia Mart., Morelos. 
Arbutus Menziesti Pursh, California. 
